From: Richard Stallman <rms@gnu.org>
Date: Mon, 30 Nov 1992 23:06:23 +0000 (+0000)
Subject: (va_end): #undef before the declaration.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0cd3c247a3b77a858b713e4da4271e4b9f6e31bb;p=gcc.git

(va_end): #undef before the declaration.

(va_arg): Alternative definition for big-endian machines.

From-SVN: r2820
---

diff --git a/gcc/ginclude/stdarg.h b/gcc/ginclude/stdarg.h
index 4ee9bb9ae6c..2b360685559 100644
--- a/gcc/ginclude/stdarg.h
+++ b/gcc/ginclude/stdarg.h
@@ -62,14 +62,26 @@ typedef void *__gnuc_va_list;
 #define va_start(AP, LASTARG) 						\
  (AP = ((__gnuc_va_list) __builtin_next_arg ()))
 
+#undef va_end
 void va_end (__gnuc_va_list);		/* Defined in libgcc.a */
 #define va_end(AP)
 
 /* We cast to void * and then to TYPE * because this avoids
    a warning about increasing the alignment requirement.  */
+
+#if defined (__arm__) || defined (__i386__) || defined (__ns32000__) || defined (__vax__)
+/* This is for little-endian machines; small args are padded upward.  */
 #define va_arg(AP, TYPE)						\
  (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),	\
   *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
+#else /* big-endian */
+/* This is for big-endian machines; small args are padded downward.  */
+#define va_arg(AP, TYPE)						\
+ (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),	\
+  *((TYPE *) (void *) ((char *) (AP) - ((sizeof (TYPE) < 4		\
+					 ? sizeof (TYPE)		\
+					 : __va_rounded_size (TYPE))))))
+#endif /* big-endian */
 #endif /* _STDARG_H */
 
 #endif /* not alpha */